Along with its needed effects, acetaminophen (the active ingredient contained in Under Ten Care Infant) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking acetaminophen:

Rare

Bloody or black, tarry stools

bloody or cloudy urine

fever with or without chills (not present before treatment and not caused by the condition being treated)

General

In general, acetaminophen (the active ingredient contained in Under Ten Care Infant) is well-tolerated when administered in therapeutic doses. The most commonly reported adverse reactions have included nausea, vomiting, constipation. Injection site pain and injection site reaction have been reported with the IV product.[Ref]